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Roanoke

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Journal Article
Published: 01 February 2017
Environmental and Engineering Geoscience (2017) 23 (1): 43–64.
... of these elements can be challenging. In this study, we examine connections between manganese (Mn) in modern groundwater, bedrock geology, and ores in the Roanoke River watershed of the Piedmont Province, Virginia. In the watershed, Mn concentrations in groundwater are often elevated above secondary drinking water...
FIGURES | View All (14)
Series: GSA Special Papers
Published: 01 May 2009
DOI: 10.1130/2009.2451(06)
... Dam construction and its impact on downstream fluvial processes may substantially alter ambient bank stability and erosion. Three high dams (completed between 1953 and 1963) were built along the Piedmont portion of the Roanoke River, North Carolina; just downstream the lower part of the river...
Series: DNAG, Centennial Field Guide
Published: 01 January 1988
DOI: 10.1130/0-8137-5406-2.217
EISBN: 9780813754123
... Abstract The site is located at Roanoke Rapids, North Carolina, along the tailrace below Roanoke Rapids dam on the Roanoke River, in the northeast quadrant of the Roanoke Rapids 7½-minute quadrangle (Fig. 1), 4.3 mi (7 km) south of the Virginia state line. This hydroelectric dam...
Series: GSA Memoirs
Published: 01 January 1972
DOI: 10.1130/MEM133-p453
... Estuarine sediments from Croatan, Roanoke, and northernmost Pamlico Sounds in the Roanoke Island area of North Carolina demonstrate complex patterns of deposition and erosion. The sediments reflect the dynamic interplay between the fresh- and salt-water systems, as controlled by the shifting...
Journal Article
Published: 01 August 1964
American Mineralogist (1964) 49 (7-8): 1136–1139.
...Richard S. Mitchell Abstract Well-formed pseudomorphs of anatase after sphene occur in an allanite-bearing pegmatite near the crest of the Blue Ridge in Roanoke County, Virginia. The pseudomorphs are nearly identical to xanthitane (xanthotitane, xanthotitanite) from Henderson County, North Carolina...
Series: GSA Special Papers
Published: 01 January 1964
DOI: 10.1130/SPE76-p235
Image
(A) Map of the <b>Roanoke</b> River watershed (blue shaded area). The <b>Roanoke</b> Rive...
Published: 01 February 2017
Figure 1. (A) Map of the Roanoke River watershed (blue shaded area). The Roanoke River (blue line) lies in the center of the watershed. Circles represent well locations, and colors correspond to filtered Mn concentrations (ppb). Red diamonds represent the locations of known historic Mn mines
Image
Generalized geologic map of the <b>Roanoke</b> River watershed in Virginia and the...
Published: 01 February 2017
Figure 2. Generalized geologic map of the Roanoke River watershed in Virginia and the locations of historic Mn mines of the JRRRMD. Circles represent well locations, and colors correspond to filtered Mn concentrations (ppb). Geologic data obtained from the USGS ( Dicken et al., 2008
Image
Figure 15. Topographic profiles across <b>Roanoke</b> River valley. Arrowheads in ...
Published: 01 February 2000
Figure 15. Topographic profiles across Roanoke River valley. Arrowheads in cross sections indicate channel position. Note abrupt change in cross-valley shape across northern zone of river anomalies (ZRA-N). Arrows in location map and profiles denote area of down-to-the-southwest cross-valley tilt
Image
—Temperature-depth plots from Coquille Bay, Romere Pass, <b>Roanoke</b>, and Lake ...
Published: 01 October 1969
Fig. 2. —Temperature-depth plots from Coquille Bay, Romere Pass, Roanoke, and Lake Arthur fields in South Louisiana.
Image
—<b>Roanoke</b> field, Jefferson Davis Parish. Wells numbered in cross section (1-...
Published: 01 September 1944
FIG. 28. —Roanoke field, Jefferson Davis Parish. Wells numbered in cross section (1-8 are Humble Oil and Refining Company): (1) T. F. Clayton No. 1; (2) DeVilbiss B-4; (3) DeVilbiss B-11; (4) DeVilbiss B-2; (5) DeVilbiss B-1; (6) C. N. Taylor No. 1; (7) C. N. Taylor No. 2; (8) R. C. Jarnigan
Image
—Electric-log cross section of <b>Roanoke</b> field.
Published: 01 September 1944
FIG. 29. —Electric-log cross section of Roanoke field.
Journal Article
Journal: Geology
Published: 01 September 2011
Geology (2011) 39 (9): 823–826.
...Philip S. Prince; James A. Spotila; William S. Henika Abstract We use unique fluvial gravel deposits preserved atop a regional drainage divide to confirm the role of stream capture in driving ∼250 m of incision in the transient Roanoke River basin of the Appalachian Mountains (United States...
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Journal Article
Journal: AAPG Bulletin
Published: 01 September 1974
AAPG Bulletin (1974) 58 (9): 1892–1893.
... and dominant structures. The southern arc extends southwest of Roanoke, Virginia; the central arc extends from Roanoke to the Hudson River; and the northern arc extends from New York to the Gulf of St. Lawrence. A fourth arc begins offshore of western Newfoundland and extends into the Atlantic Ocean where...
Series: GSA Field Guide
Published: 01 January 2017
DOI: 10.1130/2017.0047(01)
EISBN: 9780813756479
... Virginia. From mile post (MP) 0 near Waynesboro, Virginia, to ~MP 124 at Roanoke, the parkway crosses the unconformable to faulted boundary between Mesoproterozoic basement in the core of the Blue Ridge anticlinorium and Neoproterozoic to Cambrian metasedimentary and metavolcanic cover rocks on the western...
FIGURES | View All (36)
Journal Article
Published: 01 April 2014
Journal of Sedimentary Research (2014) 84 (4): 314–325.
... of the knickzone. The knickzone is the junction of the Scuppernong with the adjacent larger Roanoke incised valley, the depth of which controls base level for the Scuppernong. The dramatic Scuppernong valley widening, in a down-dip direction, is principally due to highly erosive bay-ravinement processes associated...
FIGURES | View All (7)
.... In the eastern Valley and Ridge of Alabama and Georgia the pore waters were oxidizing, and in the central and eastern Valley and Ridge from south of Roanoke to Knoxville the pore waters were initially reducing and then oxidizing. The stratigraphy of the Deicke and Millbrig is now very well known from...
Series: GSA Field Guide
Published: 01 January 2017
DOI: 10.1130/2017.0047(06)
EISBN: 9780813756479
... magmatic and solid-state fabrics) varieties. The plutonic complex intruded medium-grade metamorphosed volcanic/plutonic rocks of the Roanoke Rapids terrane. The western edge of the batholith experienced right lateral transpressional deformation associated with movement on the Hylas fault zone during...
FIGURES | View All (7)
Series: GSA Memoirs
Published: 01 September 2010
DOI: 10.1130/2010.1206(19)
... A complex sequence of deformation produced the major central and southern trends of the Appalachian fold-and-thrust belt in the Roanoke recess, Virginia. The incipient recess first experienced the Appalachian-wide stress field, then shifted to far-field effects from incremental counterclockwise...
Journal Article
Journal: GSA Bulletin
Published: 01 May 2001
GSA Bulletin (2001) 113 (5): 591–603.
... northeast-southwest and east-west fabric has geometry similar to those of fault zones in Georgia and seismically active areas of South Carolina. The faults that affect the area were probably formed by interaction of the Neuse hinge and the Roanoke Island–Goldsboro fault, which border the Graingers basin...
FIGURES | View All (10)